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Related to antiknock: antiperspirant
A substance, such as tetraethyl lead, added to gasoline to reduce engine knock.
(Automotive Engineering) a compound, such as lead tetraethyl, added to petrol to reduce knocking in the engine
an•ti•knock(ˌæn tiˈnɒk, ˌæn taɪ-)
of, pertaining to, or being a material added to fuel for an internal-combustion engine to eliminate or minimize knock.
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|Noun||1.||antiknock - any of various compounds that are added to gasoline to reduce engine knocking|
lead tetraethyl, tetraethyl lead - a clear oily poisonous liquid added to gasoline to prevent knocking
|Adj.||1.||antiknock - suppressing or eliminating engine knock in combustion engines; "antiknock properties"; "antiknock rating"|
leaded - treated or mixed with lead; "leaded gasoline"; "leaded zinc"